An analysis of data on file with the Federal Election Commission shows that the Republican incumbent has pocketed $108,721 from 225 individual contributors in SouthCoast during this election cycle, while the Democratic challenger has raised $20,695 from 33 individuals.

The Standard-Times sorted the data by Zip Code to find all donors from New Bedford, Dartmouth, Fairhaven, Acushnet, Westport, Freetown, Lakeville, Marion, Mattapoisett, Rochester and Wareham.

Felix Browne, spokesman for the senator, said Brown is very comfortable in New Bedford and the city's neighboring communities.

"People across SouthCoast relate to Scott's working-class background and see him more as an old friend than a senator, someone who thinks for himself and always has their best interests in mind. He is proud that two-thirds of his donations come from Massachusetts donors."

The Warren campaign said the disparity might not be as great as it appears because only contributions of $200 or more must be reported to the Election Commission. The campaign produced figures showing it has received $69,599 in unitemized contributions from SouthCoast, although it didn't list the specific communities.

"More than half of all our donations since April 1 have been $25 or less, and more than 80 percent of our donations have been $50 or less, demonstrating the strong grassroots momentum behind Elizabeth's campaign," said spokeswoman Alethea Harney.

SouthCoast never has been a hotbed for political contributions and there are far more registered Democrats than Republicans.

"My guess is that (Brown) has a lot of support from Democrats and independents," said Peter Ubertaccio, chairman of the Department of Political Science at Stonehill College in Easton. "With his working-class persona, he really does appeal to a certain kind of Democrat."

And, Ubertaccio said, "SouthCoast in general is a little more hospitable to Republicans, despite the disparity in political registration."

Denis Keohane, owner of the Catwalk in downtown New Bedford, has organized several fundraisers for Brown, who served as his real estate lawyer for 16 years.

This year's fundraising figures are far different than those for the 2009-10 special election campaign to fill the seat opened by the death of Edward M. Kennedy. Brown defeated Attorney General Martha Coakley in that race.

In that campaign, Brown raised only $32,251 from SouthCoast contributors, while Coakley raised $35,130.

Senate candidates in Massachusetts have raised more money from supporters — $46.7 million — than in any other election in state history or any other Senate race in the country this year, and the election is still more than three months away.

As of the end of June, Brown reported total donations of more than $19.9 million, while Warren had collected more than $24.5 million, not counting money raised and spent by outside groups. The totals include nearly $2.5 million Brown collected from political action committees and the more than $440,000 Warren accepted from PACs.

One reason both candidates are stockpiling such huge amounts of cash is an agreement they signed earlier this year designed to discourage outside groups from running attack ads on television, radio and the Internet.

During the most recent quarter, Warren raised about 60 percent of her larger donations from outside Massachusetts, while Brown received about 40 percent of his larger donations from outside the state.

Both campaigns have criticized their opponents' fundraising.

The Brown campaign has tried to portray Warren, who has received donations from Barbra Streisand and Danny DeVito, as part of a Hollywood and liberal elite, and someone who doesn't represent most Massachusetts residents.

The Warren campaign in turn has highlighted contributions Brown has collected from Wall Street, saying he's beholden to big banks.